The following video shows the demonstration of the Wu Dang Xuan Wu Fist form by Daoist Priest Zhou Xuan Yun:
http://www.youtube.com/watch?v=0jExi7cWe0A

He is going to teach this form in the workshop to be held on April 28-29, 2012 at the following location:
Chinese Taoist Martial Arts Association
5039 Oakton Street
Skokie, IL 60077

For more information, please visit http://ctmaa.com/content/2012-wu-dang-internal-martial-arts-workshop-0